Minor improvements to lld/test/COFF/lto-cache-errors.ll

Author: bd1976bris

lld/test/COFF/lto-cache-errors.ll

@@ -1,12 +1,12 @@
-;; The output is OS specific, so make this test specific to Windows.
+;; The output is OS-specific, so this test is limited to Windows.
 ; REQUIRES: x86, system-windows
 
 ; RUN: opt -module-hash -module-summary %s -o %t.o
 ; RUN: opt -module-hash -module-summary %p/Inputs/lto-cache.ll -o %t2.o
 ; RUN: rm -Rf %t.cache && mkdir %t.cache
 
-; Use a 261-character path component which filesystems will fail to create. Use
-; a response file to allow breaking up the long path into 50-character chunks.
+;; Use a 261-character path component that typical filesystems will reject.
+;; Use a response file to break the long path into 50-character chunks.
 ; RUN: echo -n "/lldltocache:%t.cache/" > %t_rsp
 ; RUN: echo -n "01234567890123456789012345678901234567890123456789" >> %t_rsp
 ; RUN: echo -n "01234567890123456789012345678901234567890123456789" >> %t_rsp
@@ -15,10 +15,12 @@
 ; RUN: echo -n "01234567890123456789012345678901234567890123456789" >> %t_rsp
 ; RUN: echo -n "01234567890/bob/" >> %t_rsp
 
-;; Check fatal usage error emitted when the cache dir can't be created.
+; Check that a fatal usage error is emitted when the cache dir can't be created.
+; The --implicit-check-not arguments verify that no crash-style output is shown.
 ; RUN: not lld-link @%t_rsp /out:%t3 /entry:main %t2.o %t.o 2>&1 | FileCheck %s \
 ; RUN:   --ignore-case --implicit-check-not=bug --implicit-check-not=crash
-; CHECK: LLVM ERROR: can't create cache directory {{.*}}/bob/: {{.*(invalid argument)|(too long)}}
+
+; CHECK: LLVM ERROR: can't create cache directory {{.*}}/bob/: invalid argument
 
 target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-pc-windows-msvc"